NDLI: Lipopeptides Produced by a Soil Bacillus Megaterium Strain

Content Provider	Springer Nature Link
Author	Pueyo, Manuel Troya Bloch, Carlos Carmona Ribeiro, Ana Maria Mascio, Paolo
Copyright Year	2008
Abstract	A soil microorganism identified as Bacillum megaterium was found to produce several antibiotics substances after growth for 20 h at 37°C in a mineral culture medium. Analysis both by electron spray ionization (ESI) and matrix-assisted laser desorption ionization—time of flight (MALDI-TOF) mass spectrometry (MS) identified these substances as lipopeptides. Predominant peaks at m/z 1,041 and m/z 1,065 revealed ions which are compatible with surfactins and lichenysins, respectively. Two other ions m/z 1,057 and m/z 1,464 were further studied by collision-induced dissociation (CID) unveiling an iturin A at the first and fengycins A and B at the second m/z peaks. The CID spectrum of the m/z 1,464 ion also suggests the existence of fengycins A and B variants in which Ile was changed to Val in the position 10 of the peptide moiety. Raw mixtures of all these compounds were also assayed for antibiotic features. The data enlighten the unusual diversity of the lipopeptide mixture produced by a sole Bacillus species.
Starting Page	367
Ending Page	378
Page Count	12
File Format	PDF
ISSN	00953628
Journal	Microbial Ecology
Volume Number	57
Issue Number	2
e-ISSN	1432184X
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-10-29
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Nature Conservation Geoecology/Natural Processes Microbial Ecology Ecology Microbiology
Content Type	Text
Resource Type	Article
Subject	Soil Science Ecology Ecology, Evolution, Behavior and Systematics

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